<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
				<link rel="stylesheet" type="text/css" href="easyui/themes/default/easyui.css">
		<link rel="stylesheet" type="text/css" href="easyui/themes/icon.css">
		<link rel="stylesheet" type="text/css" href="easyui/demo/demo.css">
		
		<script type="text/javascript" src="easyui/jquery.min.js"></script>
		<script type="text/javascript" src="easyui/jquery.easyui.min.js"></script>
		
	</head>
	<body>
		<input type="text" id="tx1" value="444"  />
		<input type="button" id="btn1" value="click"/>
		
	</body>
	
	<script>
		$(function(){
			$("#btn1").click(function(){
				$("#tx1").removeAttr("disabled");
			});
			
			$("#tx1").attr("disabled","disabled");
		});
		
	</script>
	
</html>
